Pipe wrench



Patented Aug. 19, 1924.

- PIPE WRENCH; 8

Application filed Augusti23, 1923. Serial No. 658,859.

To all whom it may concern.

Be it known that I, ARCHIE M. MoOoRn, a citizen of the United States,residing at Greenville, in the county of Greenville and State of SouthCarolina, have invented certain new and useful Improvements in PipeWrenches, of which the following is a specification.

In carrying out the present invention it is my purpose to provide awrench for pipes wherein the swinging jaw member is automaticallyadjusted whereby the wrench may be accommodatedto various sizes withoutadjusting the jaw by hand as is now the case with pipe wrenches withwhich I am familiar.

The primary object of'my invention resides in the provisionof such anautomatically adjustable pipe wrench that, is extremely simple ofconstruction and one that may be manufactured and marketed at relativelysmall cost, the tool comprising but a few parts and these co-related insuch a manner as to reduce the possibility of disarrangement to aminimum.

With the above and other objects in view as the nature of the inventionis betterum derstood, the same comprises the novel form,

combination and arrangement of partsset forth in the followingspecification, shown in the accompanying drawing and claimed. In thedrawing wherein like reference characters indicate corresponding partsthroughout both the views,

Figure 1 is an elevational view partly in section of my improved wrench,and" Figure 2 is an elevational view of the swinging jaw member per se.

Now having particular reference to the drawing, my novel wrench embodiesa bandle 5 of desirable length rounded at its lower end at 6 and formedat its upper end with inclined gripping teeth 7. This handle 5 is formedat its upper end at a pointdirectly beneath said teeth 7 and atopposite'sides thereof with eccentric recesses 8 that open at one sideof the wrench, this handlebeing formed at a point directly beneath theserecesses and at the side wherein said recesses open with a verticallyextending enlargement 9 which enlargement is formed with a verticalpocket 10 that opens at its upper end as clearly shown in Figure 1.

Positioned within the said recesses 8 and freely movable therein are thecurved legs 11 of the lower end of a swinging jaw 12,

mu STATES. PATENT (Omar- 1 I these legs being provided by slotting saidjaw as shown in both of the figures. These legs 7, 11 are pivoted withinsaid recesses through themedium of a pivot pin 13. This jaw 12 is ofcurvilinear form as shown and is formed upon its inner side from theouter edge thereof to the point wherein said legs 11 begin with teethlet that are inclined in a direction opposite the inclination of theteeth 7 of said handle 5. I j

Loosely pivotally secured to the swinging jaw 12 between said legs 11through-the mediumtof a pin 15 is the laterally extending head 16 uponthe upper end of a pendant pin 17,. thishea'd being provided with anelongated slot for permitting of the passage of said connecting pinwhereby the same is allowed to slide therein for obvious pur-- poses.Said pendant pin 17 extends downwardly within the pocket 10 and isnormally forced upwardly thereinflthrough the me- ,dium of an expansion,helical spring 18 it being obvious that said spring 18 forces up wardlyupon the pin 10 for consequently swinging the aw 12 toa closed positionand in actual practice whenever it is desired to engage apipe theprojecting end of the jaw 12 is positioned thereover and the handle 5pulled downwardly whereby the pipe may be fed between the toothed end ofsaid handle 5 and the toothed side of said jaw 12 in a manner as shownin Figure 1.

It. will be obvious that in view of the foregoing when considered inconjunction with the accompanying drawing that a wrench of thischaracter may be employed with pipes of varying sizesand fits in such amanner as not to require any manual adjustment of the aw 12.

Minor changes, may be made within the invention without departing fromthe spirit and scope of the appended claim.

Having thus described my invention what I claim as new and desireto'secure by LettersPatent is j A pipe wrench comprising a handle pro-jvided at its outer end with a rigid aw, inward and on opposite sides ofwhich are recesses, a substantially arcuate movable jaw having its innerend bifurcated, the furcations being received in said recessesandpivotally connected to said handle, said handlebeing provided on onelongitudinal edgeadjacent said jaws with a socket opening toward thelatter, an expansion spring located said movable jaw, and pivot pinspassing in said socket a pin slidably mounted in the through thefurcations and the slots in said socket and projectable beyond the outerend head, whereby to provide loose pivotal 0 thereof, said pin beingprovided on its outer connection between the pin and movable j aw. endWith a laterally disposed head, provided In testimony whereof I afix mysignature. with an elongated slot, said slotted head being disposed inthe furcations of the afore- ARCHIE M. MoCORD.

